The 7-line t-shirt company manufactors t-shirts and sells them online. The company has a model where the cost C in dollars. to make x t-shirts is given by the equation C = ** + 20 and the revenue R, in dollars, made by selling x t-shirts is given
by R = 152. The break even point is where the cost and revenue equations intersect.
How many t-shirts must the company sell to break even?